diff --git a/xpsi/PostProcessing/_corner.py b/xpsi/PostProcessing/_corner.py
index 66784ff0..ada23152 100644
--- a/xpsi/PostProcessing/_corner.py
+++ b/xpsi/PostProcessing/_corner.py
@@ -946,7 +946,7 @@ def format_CI(name, cred, summary, additional=2, sscript=False, precision=None):
             else:
                 stats += (('%s/-%s/+%s$' % (_f, _f, _f)) % (_qs[0], _qs[1], _qs[2]))
 
-            self.val_cred.append([np_.float(_f % _qs[0]),-np_.float(_f % _qs[1]),+np_.float(_f % _qs[2])])
+            self.val_cred.append([float(_f % _qs[0]),-float(_f % _qs[1]),+float(_f % _qs[2])])
 
             return stats